Ford Mustang (1999-2004) Service Manual: Transmission Description (Description and Operation)
The 4R70W has the following features:
- Wide ratio gears
- Four speeds
- Rear wheel drive
- Automatic
- Electronic shift
- Torque converter clutch control
- Line pressure controls
The transmission uses Ravigneaux-style double-pinion gearset with two bands, one one-way roller clutch, one mechanical diode and four friction clutches to produce four forward gears and Reverse.
4R70W Automatic Transmission

Automatic Transaxle/Transmission
General Specifications
a - MERCON V is not interchangeable at this time with the current MERCON
fluids. Check the
transmission fluid level indicator to determine the correct fluid and refer to
the ...
Identification Tags
All vehicles are equipped with a Vehicle Certification Label, located
on the driver side door lock post.
For correct transmission identification, refer to the code in the space
marked TR.
...
Other materials:
Gearshift Rail and Fork
Disassembly and Assembly
1. Disassemble the first/second and third/fourth shift rail as follows:
Rotate the interlock plate until it is opposite of the shift links.
Slide off the third/fourth shift fork and shift link. Separate the link
from the ...
Engine Ignition (Description and Operation)
The ignition coil (12029), which is mounted on the upper intake manifold, can
be described as a coil
pack containing three separate coil units. Each coil unit is individually
controlled by the powertrain
control module (PCM) (12A650) through separate wire le ...
Pinpoint Tests
CAUTION: Do not make jumper connections except as directed.
Incorrect connections
may damage the voltage regulator test terminals, fuses, or fuse links.
CAUTION: Do not allow any metal object to come in contact with the
generator housing
and inter ...
